P0351 Ignition Coil A
02-15-2011, 02:25 PM
#1
2nd Gear Member
Thread Starter
Join Date: Jul 2008
Location: Alabama
Posts: 174
P0351 Ignition Coil A
Hello guys, need alittle help here. Kinda frustrated and disappointed to say the least but here goes. Alittle over a month ago, I went to work. I went out on my lunch brake and its fine when I first leave but after about 5 mins of driving, my exhaust sounds different. Then i stop at a red light and I hit the gas only to my surpise it's shaking when i accelerate. Take it home and I get this code.
So i buy all 8 new coil packs, MSD (Blasters) and all 8 spark plugs NGK (all gapped to .054)installed them along with a new IAC valve. Just figured I change it for the hell of it. Start it up and im taching 2,000 rpm. I took the IAC valve off and put my old one back on and now im taching 800 rpm at an idle. The IAC was bad probably. Yet and still after installing all these new parts im still getting this P0351 code. I'm all out of ideas and need alittle help and suggestions before I go to the dealer.
2000 Mustang GT 4.6
beginner mods, CIA , pulleys, tune
(Shaking In Fear)
So i buy all 8 new coil packs, MSD (Blasters) and all 8 spark plugs NGK (all gapped to .054)installed them along with a new IAC valve. Just figured I change it for the hell of it. Start it up and im taching 2,000 rpm. I took the IAC valve off and put my old one back on and now im taching 800 rpm at an idle. The IAC was bad probably. Yet and still after installing all these new parts im still getting this P0351 code. I'm all out of ideas and need alittle help and suggestions before I go to the dealer.
2000 Mustang GT 4.6
beginner mods, CIA , pulleys, tune
(Shaking In Fear)
Last edited by boothay; 02-15-2011 at 02:38 PM.
02-15-2011, 02:58 PM
#3
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
Also, did you disconnect the battery for 5-7 minutes while/after installing the new IAC--this needs to be done any time you change-out any engine control or sensor to clear the KAM (Keep Alive Memory).
The KAM is where the adaptive learning data, such as idle air trim, is stored--clearing it forces the PCM to relearn those values.
The KAM is where the adaptive learning data, such as idle air trim, is stored--clearing it forces the PCM to relearn those values.
02-15-2011, 07:05 PM
#5
4th Gear Member
Join Date: Apr 2009
Location: sttesuhcaxaT (The State you love to hate)
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Also, did you disconnect the battery for 5-7 minutes while/after installing the new IAC--this needs to be done any time you change-out any engine control or sensor to clear the KAM (Keep Alive Memory).
The KAM is where the adaptive learning data, such as idle air trim, is stored--clearing it forces the PCM to relearn those values.
The KAM is where the adaptive learning data, such as idle air trim, is stored--clearing it forces the PCM to relearn those values.
didnt know that about the IAC and the battery.Thank You.You sure know these cars CliffyK
02-15-2011, 09:52 PM
#6
2nd Gear Member
Thread Starter
Join Date: Jul 2008
Location: Alabama
Posts: 174
Yes sir! It is still running rough it shakes very bad during acceleration up until about 2,500 rpm then it kind of levels out. All of my plugs are gaped at .054 and all the spark plugs threaded in perfectly and torqued down to 15 ft/lbs of torque
02-16-2011, 05:52 AM
#8
2nd Gear Member
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Join Date: Jul 2008
Location: Alabama
Posts: 174
Yes cliffyk, I disconnected the battery for a whole night lol. Im gonna exchange that IAC valve at my local autozone. How would I go about checking connections to my COP's any video or instructions would be greatly appreciated. Thanks guys for all your help/responses.
02-16-2011, 09:07 AM
#10
4th Gear Member
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Location: sttesuhcaxaT (The State you love to hate)
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